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Fronius Symo Hybrid

The heart of the 24 hours of sun storage solution.

This inverter combines a battery charging system, battery inverter, hybrid inverter, controller and system monitoring solution in one device. With AC power categories ranging from 3.0 to 5.0 kW, the inverter is able to process up to 8.0 kW in order to supply household consumers with energy and to temporarily store surplus energy from a photovoltaic system in a battery storage device. Thanks to an intelligent energy flow management system, the built-in Multi Flow Technology supports simultaneous energy flows in all directions as well as AC-, DC- and AC- & DC coupling of the battery storage. The result: maximum self-consumption and optimum system profitability.
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Product details


Number of MPP trackers1
Max. PV input power
8000 W
Max. input current (Idc max)
1 x 16 A
Max. short circuit current, module array
24 A
DC input voltage range (Udc min - Udc max)
150 - 1000 V
Feed-in start voltage (Udc start)
200 V
Nominal input voltage (Udc,r)
595 V
MPP voltage range (Umpp min - Umpp max)
320 - 800 V
Usable MPP voltage range150 - 800 V
Number of DC connections2


Maximum output power to batteryDependent on connected Battery
Maximum input power from batteryDependent on connected Battery


AC nominal output (Pac,r)
5000 W
Max. output power (Pac max)
5000 VA
Max. grid power demand5000 VA
Max. AC output current8,3 A
Grid connection (Uac,r)
3~ NPE 400/230, 3~ NPE 380/220 V
AC voltage range (Umin - Umax)
150 - 280 V
Frequency (fr)
50 / 60 Hz
Frequency range (fmin - fmax)
45 - 65 Hz
Total harmonic distortion< 3 %
Power factor (cos φac,r)
0,85 - 1 ind,/cap,


431 mm
645 mm
204 mm
Weight19,9 kg
Degree of protectionIP 65
Protection class1
Overvoltage category (DC / AC) 1)
2 / 3
Night-time consumption< 1 W
Inverter designTransformerless
CoolingRegulated air cooling
InstallationIndoors and outdoors
Ambient temperature range-25°C - +60°C
Permitted humidity0 - 100 %
Max. altitude 2)
2,000 m
DC PV connection technology2x DC+ and 2x DC- screw terminals 2.5 - 16 mm²
DC battery connection technology1x DC+ and 1x DC- screw terminals 2.5 - 16 mm²
AC connection technology5-pin AC screw terminals 2.5 - 16 mm²
Emergency power compatibleYes
Certificates and compliance with standardsVDE AR N 4105, ÖVE / ÖNORM E 8001-4-712, DIN V VDE 0126-1-1
Compatible batteriesBattery-Box H 6.4, 7.7, 9.0, 10.2, 11.5
Battery-Box Premium HVM 8.3, 11.0, 13.8, 16.6, 19.3, 22.1*
Interference emission classB


Max. efficiency (PV - grid)97,9 %
Max. efficiency (PV - battery - grid)> 90,0 %
European efficiency (ηEU)96,0 %
η at 5% Pac,r 3)
81,6 / 81,6 / 73,4 %
η at 10% Pac,r 3)
89,2 / 92,5 / 89,7 %
η at 20% Pac,r 3)
93,2 / 95,3 / 94,2 %
η at 25% Pac,r 3)
94,0 / 96,5 / 95,3 %
η at 30% Pac,r 3)
94,5 / 96,7 / 96,0 %
η at 50% Pac,r 3)
95,3 / 97,5 / 96,8 %
η at 75% Pac,r 3)
95,6 / 97,9 / 97,3 %
η at 100% Pac,r 3)
95,8 / 97,9 / 97,5 %
MPP adaptation efficiency> 99,9 %


DC insulation measurementIntegrated
Overload behaviourOperating point shift, power limitation
DC disconnectorIntegrated
DC Reverse polarity protectionYes
Integral RCMUYes


WLAN / Ethernet LANFronius Solar.web, Modbus TCP SunSpec, Fronius Solar API (JSON)
Datalogger and web serverIntegrated
Interface to battery and meterModbus RTU (RS485)

SnapINverter technology

The SnapINverter generation of inverters features a simple, standardised mounting system, making installation and maintenance easier than ever. A special feature in the design of the device is that the connection area is separate from the power stage set compartment, with both being installed separately. The remarkably light connection area and all its cabling is fitted to the wall first, followed by the power stage set. The innovative hinged system makes installation and servicing extremely user-friendly. The inverter is simply placed in the wall bracket and then secured. This means that it is not necessary to remove the entire inverter for servicing, just the power stage set. All the cabling remains in place.

Integrated data communication

We are the first inverter manufacturer to offer a data communication package with fully integrated datalogging, WLAN, Ethernet, energy management, web server and a range of interfaces. The inverter is connected to the internet by network cable or WLAN - without additional cabling - and grants you the perfect overview of how the PV system is operating. Connection to third-party components is provided by means of interfaces such as Modbus TCP SunSpec, Modbus RTU SunSpec or Fronius Solar API (JSON). The open interfaces can also be operated in parallel to the Fronius Solar.web.

Dynamic Peak Manager

The Dynamic Peak Manager is a new MPP tracking algorithm that dynamically adapts its behaviour when searching for the optimal operating point. Its special feature is that the Dynamic Peak Manager automatically checks the entire characteristic curve on a regular basis and finds the global Maximum Power Point (GMPP), even in partial shade.

Smart Grid Ready

Fronius inverters are ready for the Smart Grid of tomorrow. The inverters are optimally equipped to meet the technical requirements of grids in the future. A series of smart functions, known as Advanced Grid Features, are built into the devices. They include a number of control functions for optimum feed-in of reactive power and effective power. These functions are designed to enable stable grid operation even when the PV system density is very high and to prevent unwanted interruptions to feed-in and associated yield losses if grid parameters exceed the thresholds. Fronius inverters therefore help to guarantee the yield of a PV system. Furthermore, where feed-in limits are imposed, Fronius inverters can provide dynamic feed-in control with self-consumption taken into account. Just connect the meter and set the feed-in limit!

Multi Flow Technology

Using Multi Flow Technology, different DC and AC energy flows are possible in parallel. On the one hand, this allows energy from the modules and from the battery to be made available for domestic use at the same time. However, it is also possible for the energy from the modules to be simultaneously fed into the battery and the in-house network. Furthermore, not only can the battery be charged from the DC side, but also from the AC side (for example from existing PV systems or other energy sources, such as a wind turbine). This means the inverter is also suitable for AC-coupled retrofitting. The inverter manages these energy flows in such a way that the highest possible degree of self-sufficiency is achieved.

Zero feed-in

Today, an increasing number of grid operators in various countries are stipulating a PV power feed-in limit as a precondition before a system is connected to the grid. With dynamic power reduction, Fronius is offering a solution for optimum feed-in management. The Inverter supplies the household consumers with energy first and then reduces the system Output to the maximum energy feed-in permitted by the grid operator. With Fronius inverters, zero feed-in is also a possibility thanks to this function, meaning that no PV power is fed into the grid. The relevant requirements of the grid operator can be fulfilled by simply enabling a Setting on the inverter's web interface.

Active Cooling

Active cooling technology relies on one or more fans, which not only avoid hot spots, but also regulate the air circulation inside the inverter, thus keeping the temperature of the power electronics low. This has a positive effect on the service life of the devices, optimises yields and reduces costs. At Fronius, active cooling is supplied as standard in all devices.

Digital Operating Instruction

Clear HTML version of the operating instructions. Mobile and optimised for every device.


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1) According to IEC 62109-1.  

2) Unrestricted voltage range. 

3) And at Umpp min / Udc,r / Umpp max.

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